The adidas UltraBoost 19 reinvents the running experience with innovative, energized tech. Issued in April 2019, this 'Grey Clear Orange' variant is engineered for adaptability in a two-tone Primeknit 360 upper with a motion weave pattern, TPU midfoot cage and 3D heel frame. A stabilizing Torsion Spring is integrated into the Boost midsole. Stretchweb and Continental outsole rubber combine to propel the foot.